// connect to click on item
connect( ob->model(), SIGNAL( clicked( SUIT_DataObject*, int ) ),
this, SLOT( onObjectClicked( SUIT_DataObject*, int ) ), Qt::UniqueConnection );
// connect to click on item
connect( ob->model(), SIGNAL( clicked( SUIT_DataObject*, int ) ),
this, SLOT( onObjectClicked( SUIT_DataObject*, int ) ), Qt::UniqueConnection );